Drier



(No Model.)

DRIER.

Patented Sept. 29, 1896.

v UNITED STATES Prion.

PATENT DRIIKER.

SPECIFICATION forming part of Letters Patent No. 568,696, datedSeptember 29, 1896.

Application filed March 14, 1896.

To all whom it may concern:

Be it known that I, CHARLES E. RD, of South Brooklyn,Ouyah oga county,Ohio, have invented certain new and useful Improvements in Driers; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use the same.

My invention relates to an improved drier especially well adapted foruse in the manufacture of fertilizers, and comprising a tank into whichthe material to be dried is introduced, and that is provided internallywith rotary agitating or mixing arms or breakers, instrumental inbreaking up or disintegrating or stirring and mixing the material undertreatment, and ,furthermore,instrumental in discharging the dried ortreated material through a doorway or opening formed within the lowerportion of a side of the tank.

The invention consists, primarily, in a discharge door or opening havingsuch shape as to prevent an obstruct-ion or impediment to the revolvingdischarging blades or arms as the latter move past said opening.

The invention consists, furthermore, in vertically-adjustable agitatingor stirring or disintegrating arms, and means for elevating said armsout of the material being treated and retaining them at the desiredelevation out of operative connection with the operating-shaft.

My invention consists, moreover, in certain features of construction andcombinations of parts hereinafter described, and pointed out in theclaims.

In the accompanying drawings, Figure 1 is a side elevation, partly invertical section, of a drier embodying my invention. This figure showsthe discharging side of the machine. Fig. 2 is a side elevation, mostlyin central vertical section, on line 2 2, Fig. 1. Fig. 3 is a sideelevation corresponding with Fig. 2, except that in Fig. 3 the revolvingtoothed arms or bars are shown in position engaged by the screwsemployed in elevating said bars or arms out of the material undertreatment, and said Fig. 3 shows said arms or bars thus elevated indotted lines. Portions of the tank and surrounding steam-jacket of ber.

Serial No. 583,207. (No model.)

the machine are of course broken away in Fig. 3 to more clearly show theconstruction.

My improved drier comprises an upright cylindrical tank A, into whichthe material to be dried is introduced at any suitable number ofcharging-holes A with which the top of said tank is provided. Adesignates the covers for closing said openings A. The material to bedried is treated in the lower portion of the tank, and said tank portionis surrounded by a steam-chamber or steamjacket a, constructed in anyapproved manner and provided, at or near its upper end, with anysuitable number of steam-supply pipes a',communicating with thesteam-cham- The steam-jacket extends,preferably, a suitable distancebelow the bottom A of tank A, and the bottom a of the steam-chamber orsteam-jacket declines, preferably, from the central portion of saidjacket below the central portion of tank A downwardly and outwardlytoward the surrounding side walls of the steam-chamber. The steamjacket,at the lower end of said bottom, is provided with any suitable number ofdrain-pipes a communicating with the jackets chamber and employed incarrying off any water resulting from condensation of steam within saidchamber.

Tank A, at one side and a short distance above its bottom A, is providedwith a discharging doorway or opening A at which the material treated insaid tank is discharged. The surrounding casing of said doorway oropening extends through the steam-jacket and cuts off communicationbetween said doorway or opening and the jackets chamber.

A designates a suitably-applied door for closing opening A Door A isshown open in Fig. 1, and closed in Figs. 2 and 3.

The jackets bottom and tanks bottom are preferably connected togetherand braced apart by means of suitably-applied stay-bolts or rods 0, asshown in Fig. 2.

An upright shaft B extends centrally through tank A, and at its lowerend has bearing in a step-box b, suitably formed or constructed betweenthe bottoms of the tank andsurrounding jacket. Said shaft B, at or nearits upper end, has bearing in a box I), that is suitably secured to thetop of tank A.

A collar b mounted upon and rigidly secured to the shaft and abuttingthe lower end of said box Z), prevents upward displacement of the shaft.A bevel-gear B is operatively mounted upon the upper end of said shaftabove box I), and meshes with a pinion D, operatively mounted upon thesuitablydriven horiz011tally-arranged driving-shaft D, that has bearingin any suitable number of boxes d, formed upon the upper ends ofstandards cl, that are rigidly secured to the top of tank A. Shaft 13,at its lower end, is provided with any suitable number oflaterally-projecting arms of blades B arranged at right angles to theshaft and in exceedingly close proximity to the tanks bottom andextending into close proximity to the surrounding wall of the chamber ofthe tank. Two blades or arms 13 are shown in the machine, illustrated atopposite sides, respectively, of the shaft. Arms or blades B are notonly instrumental in preventing the material being treated from bakingupon or ad hering to the tanks bottom, but also find employment inbreaking up, stirring, and mixing material, and are employed also ineffecting the discharge of the treated mate rial from the machinethrough opening A Members B are preferably integral with each other andadjustable vertically relative to the tanks bottom and secured in thedesired adjustment by a set-screw b Shaft 13, at a suitable elevationabove arms or blades B is provided with any suitable number oflaterally-extendin g arms 13 that extend into close proximity to thesurrounding wall of the chamber of the tank and are arranged at rightangles to the shaft and out of line with blades or arms B The machineillustrated is provided with two arms 15, arranged at opposite sides,respectively, of the shaft and at right angles to arms or blades B andthe two arms ll are shown integral with each other and operativelymounted upon the shaft by a groove and feather at 13. The feather isformed upon the shaft and the groove extends through one of the arms, soas to accommodate avertieal adjustment of the downwardly-projeetingteeth b with which arms B are provided relative to the bottom of thetank. Each bar B is provided, preferably, with several teeth if,arranged at suitable intervals lengthwise of the bar.

The toothed bars or arms may not only be used in effecting the dischargeof the material from the machine, but find employment in stirring andmixing the material under treatment and in breaking up or disintegratingthe upper surface of the material. Said arms or bars rest upon acollarli that is adj ustable vertically of the shaft, and is secured tothe shaftin the desired adjustment by means of a set-screw b. Thevertical adjustability of said collar 13 is necessary to accommodate avertical adjustment of.,the said bars or arms. The toothed arms or barsB are elevated, if desired, out of the material and out of operativeconnection with. shaft 13. Bars B are elevated by means of uprightscrews E, that extend through upright nuts 6, suitably secured to thetop of tank A, and each screw E at its upper end is provided with ahand-wheel E for turning the same. Two screws E are shown provided inthe machine illustrated at diametrically opposite points, respectively,and it is obvious that the screws are lowered or elevated according asthey are turned in the one direction. or the other. Each screw at itslower end is provided with a laterally-projecting arm E adapted uponlowering the screw to the extent required to engage an eye 1-3", securedto or formed upon the outer end of each barorarm B. In Fig. 3the screwsare shown lowered, with their arms E in engagement with the eyes uponarms or bars B and in dotted lines in same figure said bars are shownelevated above the feather formed upon the shaft and consequently out ofoperative con.- nection with the shaft.

Arms or blades 13 are arranged, preferably, obliquely to the tanksbottom, as shown in Figs. 1 and 3, to facilitate the discharge of thetreated material from the tank through opening A". Blades or arms Bextend above and below the lower extremity of the discharge opening, andpreferably about an inch below said opening, to avoid wedging orclogging of the material between said arms or blades and the openingslower wall during the discharging operation, and thereby avoid breakageor mutilation of any of the operating parts of the machine. The arrowsindicate the direction in which shaft 13 and its arms move during themachines operation, and the end of opening B in the direction of whichsaid arms move during their operation, I term the forward end of theopening. To avoid clogging of the material in and ad, 'acent to theforward end of said opening, and to avoid an obstruction and possiblybreakage or mutilation of the operating parts of the machine, I avoidthe employment of an ything approximating a square corner at the forwardend of said opening and form an incline a, forming the forward portionof the lower wall and lower portion of the forward end wall of saidopening, and having its trend upwardly in the direction in which members13 revolve, so that any material that would otherwise tend to clog atthe forward end of said opening, and thereby obstruct the operation ofthe machine during the discharge of the material, is caused to rise upsaid incline out of the way, and for the same reason I preferably havethe forward end wall of said opening curve or slope inwardly at itsupper end, as at a, as shown in Fig. 1.

What I claim is- 1. A machine of the character indicated having its tankprovided, internally with suitably-actuated revolving members foreffecting the discharge of the treated material, and

having, in one of its sides, a discharge-openably-actuated revolvingmembersfor effect ing the discharge of the treated material, and having,in one of its sides, a discharge-opening whose lower walls forwardportion and whose forward end walls lower portion have the trendrequired to form a forwardly and upwardly extending incline a and theupper portion of said forward end wall having an inward and upwardtrend, as at a, substantially as shown, for the purpose specified.

3. In a machine of the character indicated, the combination with thetank having a discharge-opening A at one side and near its bottom, ofthe suitably-actuated revolving arms or blades B extending above andbelow the lower wall or extremity of said opening and arranged in closeproximity to the tanks bottom, substantially as and for the purpose setforth.

4. In a machine of the character indicated, the combination with thetank, an upright shaft arranged centrally of the tank, and any suitablenumber of laterally-projecting mixin g, stirring or disintegrating armsor bars operatively connected with the shaft by means of a groove andfeather; of suitable means for elevating said bars or arms out ofoperative connection with the shaft and holding them in their elevatedposition, substantially as set forth.

5. In a machine of the character indicated, the combination with thetank, of an upright shaft arranged centrally of the tank, any suitablenumber of laterally-projecting mixing, stirring or disintegrating armsor bars operatively connected with the shaft by means of a groove andfeather, eyes upon said bars or arms, nuts rigid with the top of thetank, suit ably-operated screws engaging said nuts and extending intothe tank, and provided, at their lower ends, with laterallyprojectingarms or members E all arranged and operating, substantially as and forthe purpose set forth.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 25th day of February, 1896.

CHARLES E. 0RD. Witnesses:

O. H. DORER,

ELLA E. TILDEN.

